H90.42
BillableSensorineural hearing loss, unilateral, left ear, with unrestricted hearing on the contralateral side
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
Hearing loss in the left ear caused by inner ear or hearing nerve damage, while the right ear has normal hearing.
Coding Tips
- •The '42' indicates left ear involvement with unrestricted hearing on the opposite side; use H90.41 for right ear unilateral cases.
- •Document whether the contralateral ear truly has unrestricted hearing to ensure accurate code selection.
Code Hierarchy
└H90Conductive and sensorineural hearing loss└H90.4Sensorineural hearing loss, unilateral with unrestricted hearing on the contralateral side└H90.42Sensorineural hearing loss, unilateral, left ear, with unrestricted hearing on the contralateral side
└H90.42Sensorineural hearing loss, unilateral, left ear, with unrestricted hearing on the contralateral side